In this paper a new method for the detection of delamination damage in composite beams using scanning Doppler laser vibrometry is presented. The recent advances in scanning laser technology now allow very accurate measurement of displacement fields, which in the case of undamaged structure must satisfy the fundamental equations of continuum mechanics. A violation of these equations at specific ...

A new analytical model for the prediction of concrete response under uniaxial compression and its experimental verification is presented in this paper. The proposed approach, referred to as the rheological-dynamical continuum damage model, combines rheological-dynamical analogy and damage mechanics. Within the framework of this approach the key continuum parameters such as the creep coefficient...

In the context of nuclear waste disposal, the modelling of the behaviour of host rocks and soils still needs improvement. Unsaturated porous geomaterials exhibit particular behaviour when exposed to suction. Their non-linear behaviour may result from two different processes, plasticity which induces irreversible strains and damage which causes a deterioration of their elastic properties. Many e...

A new relaxation approach is proposed which allows for the description of stress- and strain-softening at finite strains. The model based on construction a convex hull replacing originally non-convex incremental stress potential in turn represents damage terms classical (1?D) approach. This given as linear combination weakly strongly damaged phases thus, it homogenization microstructure bifurca...

We present a new Integrated Finite Element Neural Network framework (I-FENN), with the objective to accelerate numerical solution of nonlinear computational mechanics problems. leverage swift predictive capability neural networks (NNs) and we embed them inside finite element stiffness function, compute element-level state variables their derivatives within nonlinear, iterative solution. This pr...